Q.In what ways are fuel cells and galvanic cells similar and in what ways are they different ?

Step 1. SIMILARITIES: both fuel cells and ordinary galvanic cells generate electricity from a spontaneous redox reaction; both split this reaction into an oxidation half reaction at the anode and a reduction half reaction at the cathode; both are governed by the same electrode-potential and Nernst-equation framework developed throughout this chapter.

Step 2. DIFFERENCE 1: an ordinary galvanic cell (e.g. the dry cell or Daniel cell) has its reactants sealed inside the cell itself, and is exhausted once they are fully consumed (unless it is specifically a rechargeable secondary cell). …

Compare fuel cells and galvanic cells on the shared underlying redox/electrode principle versus the struct …

• Claiming fuel cells work on a completely different principle from galvanic cells -- they are, in fact, a type of galvanic cell, differing on …